Method for the insertion of pre-wound coils into stator slots

Abstract

The invention relates to a method for the insertion of pre-wound coils into the slots of a stator of a rotary electric machine. The device comprises a cylindrical finger holder having on its periphery an annular series of longitudinal grooves, housing a series of fingers which extend beyond one end of the finger holder to receive the pre-wound coils. At the other end of the cylindrical finger holder opposite that from which the fingers extend is an end portion which is insertable into a stator and is provided with reference means for determining the correct angular orientation of the finger holder and the fingers with respect to the stator slots when the said other end portion of the finger holder is inserted into the interior of a stator. The device further includes means for drawing the finger holder right through the stator, with the said other end portion as the leading end, after this latter has been introduced into the stator, so that the fingers carrying the pre-wound coils are drawn through the stator in the correct angular orientation to effect insertion of the pre-wound coils carried by the fingers into the stator slots.

What is claimed is: 
     
       1. A method for the insertion of pre-wound coils into stator slots of a stator of a rotary electric machine using a cylindrical finger holder having on its periphery a series of longitudinal grooves and an annular series of fingers fixed in said grooves of said finger holder and extending beyond one end of the said finger holder to receive said pre-wound coils, said method comprising the steps of: inserting into a stator an end portion of said cylindrical finger holder opposite said one end thereof from which said fingers project;   angularly orienting said finger holder in order to align pre-wound coils carried by said fingers thereof with said stator slots, and effecting an axial displacement of said finger holder through said stator with said end portion as the leading end thereof, whereby to cause said fingers to draw said pre-wound coils carried thereon through said stator and to insert them into the slots of said stator.